Finding the Fourth Proportional to 117,147.84, 161,665.36 and 63,434.08
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Solution
The fourth proportional to 117,147.84, 161,665.36 and 63,434.08 is: 87,539.76
Step by Step Solution
- Step 1: Write the proportion equation
117,147.84 : 161,665.36 = 63,434.08 : x - Step 2: Convert to fraction form
117,147.84/161,665.36 = 63,434.08/x - Step 3: Cross multiply
117,147.84x = 161,665.36 × 63,434.08 - Step 4: Simplify right side
117,147.84x = 10,255,093,379.47 - Step 5: Solve for x
x = 10,255,093,379.47/117,147.84 - Step 6: Final answer
x = 87,539.76
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.